Dr. Yan specializes in the surgical treatment of intracranial tumors and has extensive expertise in the diagnosis and management of a broad spectrum of neurosurgical diseases. His core clinical expertise covers gliomas, meningiomas, vestibular schwannomas, pituitary adenomas, congenital intracranial tumors, cerebrovascular diseases, and hydrocephalus.

With nearly 50 years of clinical experience in neurosurgery, Dr. Yan has cultivated core expertise in the diagnosis and surgical treatment of pituitary adenomas, especially functioning pituitary tumors. Throughout his career, he has actively promoted the upgrade from conventional open craniotomy to modern minimally invasive surgical techniques and is highly proficient in the application of advanced microsurgical visualization and neuroendoscopic techniques.

In recent years, Dr. Yan has performed over 2,000 neurosurgical procedures, with clinical outcomes reaching an advanced level in China. He enjoys widespread professional recognition for his profound clinical competence and academic attainments and has published multiple academic papers in core neurosurgical journals.